THe NAC Lots-O-BFG KO2 Thread

[kastein]

Re: THe NAC Lots-O-Post Thread

Wow, glad I didn't end up there then! That would have sucked.

When they were at the job fair I talked to them at, they threw me what was supposed to be a tough question... luckily I'd designed exactly what they asked me about (a wheatstone bridge sensor amplifier/level converter) two weeks before for my senior project and drew it from memory. I sucked pretty bad at most of their hardcore interview questions though.

 

[themangeraaad]

Re: THe NAC Lots-O-Post Thread

frack I hate bills. I just checked my accnt and noticed I have X amount and thought "thats not bad" then realized that the $430 deduction for tires hadn't come out yet... and it's the time of month to pay bills.

I hate student loans, and car loan, and storage facility payment. I just scheduled a $400 payment for my student loans, ugh. After all my payments are done I will be another $1000 in the hole. I think I have to wait for a paycheck or 2 to come in before I regear the front (or buy a replacement) unless I get a great deal. Rear axle is getting fixed asap so I can drive the Jeep to outings and M&G's at least though.

Edit: And I just went to pay off my credit card online. I have a card with BofA and my checking account is with them too... I saw a link to "make payment" so I clicked that and the site told me "you do not have any accounts setup for billpay"... but it lets me go into account transfer and just transfer funds from my checking or savings accnt to the card and it classifies it as a "payment" :dunno: Guess I can add "billpay" to my account and use it with other stuff too? Good thing I don't have any other cards so I can just use this one and pay it off via transfers

 

[Begster]

Re: THe NAC Lots-O-Post Thread

Don't say the word Wheatsone Bridge around me, I hated my bullsh*t measurements and analysis class, where we had to use those, and were expected to completely know and understand their calculations, when they were only touched upon in class.

 

[Begster]

Re: THe NAC Lots-O-Post Thread

Oh, Carmelo this is for you.

 

[asp]

Re: THe NAC Lots-O-Post Thread

Yep, Sensata in Attleboro. They have since gone under pretty much, almost everyone I worked with is no longer working there.

i have a bunch of friends that were layed off from there too. did you know a guy named brian sherman? he's a few years older than me. went to umass for ME too.... his mother was my high school calc teacher too.

 

[Begster]

Re: THe NAC Lots-O-Post Thread

Ha, ya he is a bigger guy isn't he?

If so, I knew who he was, I didn't actually know him. My friend who worked with me shared a cube with him though.

 

[asp]

Re: THe NAC Lots-O-Post Thread

this makes me wonder...what *is* "inspection grade granite"? and why is granite used?? Where I work in some of the labs there are a few giant blocks/slabs or whatever, of what I'm assuming is "inspection grade granite." whats the benefit to using granite as opposed to a man-made matieral, and what do you use it for?


I might be way off, and what you're talking about is totally unrelated :hang: either way though, I'm curious

bigass very stiff thing that does not flex at all. the top surface is ground perfectly flat. used for reference to see if a piece warps or something.... happens a lot with welding or rough machining. i've used one a bunch of times any time i end up doing work in a machine shop. comes in handy. i've seen them as small as 6" thick and 2'x3' to about 1.5' thick and 4'x8'

 

[asp]

Re: THe NAC Lots-O-Post Thread

Ha, ya he is a bigger guy isn't he?

no, he's about my height and very fit. he mountain bikes and stuff... one time i saw him when he was finishing a ride and i was just starting.

what would we do without facebook?

 

[Begster]

Re: THe NAC Lots-O-Post Thread

Hm, never mind then Anthony.

Yes! I found a picture.

 

[kastein]

Re: THe NAC Lots-O-Post Thread

That's the beast alright!

Good luck finding the hardware to install one, if you want to. I bet you could pull it out of an XJ Waggy and maybe a well-optioned Limited or Pioneer but not much else.

 

[5spd_xj]

Re: THe NAC Lots-O-Post Thread

about 1.5' thick and 4'x8'

yup, thats what they've got at the place I work

 

[Hackmeister]

Re: THe NAC Lots-O-Post Thread

Don't say the word Wheatsone Bridge around me, I hated my bullsh*t measurements and analysis class, where we had to use those, and were expected to completely know and understand their calculations, when they were only touched upon in class.

just an FYI... Wheatstone Bridge circuits WILL come back to haunt you in the electrical engineering class. don't forget completely about them. a bunch of the capstone groups needed them as well

 

[Begster]

Re: THe NAC Lots-O-Post Thread

I cant forget about them if I never learned them in the first place.

 

[Hackmeister]

Re: THe NAC Lots-O-Post Thread

touche'

 

[kastein]

Re: THe NAC Lots-O-Post Thread

wheatstones aren't that hard to work with :dunno:

Build yourself a good split rail power supply, a differential amplifier of the instrumentation amplifier type (requires maybe 3 op-amps, get a TS934 from STMicroelectronics), and a level converter (another op amp, luckily the TS934 has four in it) and a buttload of precision resistors.

Problem solved

 

[RCman]

Re: THe NAC Lots-O-Post Thread

Ugh... so much to respond too... beer is good.

What's fancy max load? I hear you want one with a dial on it. Looks like I have most of the tools I would need and the ones I don't I wouldn't mind buying. Know a good place to buy the micrometer and dial indicator(and accessories)? Also do you think a micrometer is really necessary or could a good pair of digital calipers get the job done? I will need this stuff for when I rebuild my TH400.

Mark covered the max load deal, so I won't explain that.
A micrometer isn't necessary, but its always a good investment if you get a top quality one.
I don't like digital from the pure fact that if you can't read a vernier then you shouldn't be taking that accurate measurements anyway.

hehe I'm looking forward to Bill's response...

Hey now...

I responded to his post before I read all the pages

:compwork:

He's still gonna ream you :lecture:

Nah, I like to think of myself as a nice guy.

I also do wanna know what the downfall of digital vernier calipers are. I like the idea that I can use them for internal and external measurements as well as use them at work. Non digital just don't make sense for measuring things on a vehicle.

It's not worth the convenience if it sacrifices accuracy though. So I just wanted to know if he didn't like them because they were less accurate or because he just doesn't see the need when "analog" ones work fine.

Like I explained above, most of the time the digital ones are used by people that can't understand or read a vernier or dial caliper. This means they are generally using it wrong and cant get a good measurement. If used correctly they should yield the same results.

Bill is just Bill. That's what you'll determine in the end..."umm. ok dude, whatever.."

Thanks, I guess?

Like I said I'll be using the dial indicator on my transmission. If he says absolutely get a good one I'll pay the $100 and keep it somewhere safe where I wont ruin it. When it comes to big important parts like trannies and axles that take alot of time to rebuild I like to not be so "me."

Exactly, when it comes to indicators, get the good one. Don't drop it, don't get it dirty, keep it clean, it'll last forever.

Now stay with me while I type the response to calipers vs. micrometers.

Alright, mircometers are more accurate than vernier calipers (digital vs analog doesn't matter, its just the method of reading the measurement that is different, they make the same measurements).

With vernier calipers, you can easily get a false reading by the amount of pressure you put on the tool. If you have ever measured something flexible, the reading you get can change greatly by how hard you squeeze it. Also, the reading changes the farther away the object you are measuring is from the body of the calipers. If you are measuring something at the very tips of of the instrument, then there is more leverage on the measuring arms, they can bend slightly, and the body can twist on the slide slightly.

With Mics, they actually have a mechanism built in that once it exceeds a certain torque, it skips gears, so that you can not over tighten the instrument and obtain a false reading. This will give you a more consistent reading, that is more accurate.

This is what I was talking about when I said I disliked the digital versions. If you are getting "false readings" you are doing it wrong. Also if you bending the calipers you've either got a cheap crap set, or again are doing it wrong. You should get the same reading regardless if you are using the tips of the caliper or the very beginning. Learn. Plain and simple. Learn.

Ahh okay so I was being dumb. I have seen them and just referred to them as the "dial" ones. Also I understand the calipers vs. micrometers debate. My question was digital vs analog. I have read through some mechanical engineering books and know at the very least micrometers are more accurate inherently. I was more wondering if you lose any accuracy using a pair of digital calipers over analog. I know alot of places make really cheesy ones but besides that what if I buy a "nice" one.

Micrometers will give you a better measurement easier just due to their nature, but calipers should do the job fine (at least for axle/trans stuff, other stuff maybe not) if you use them properly. Comparing good digital to analogs there should be no difference. Again assuming you use them right. Everyone should know how to use/handle/read a vernier before moving to dial before moving to digital.

 

[5spd_xj]

Re: THe NAC Lots-O-Post Thread

Good morning everyoneeee

 

[redneckboarder]

Re: THe NAC Lots-O-Post Thread

i bought a browne and sharp micrometer..but im an idiot and thought that it had a 2" throw for measurement...after i bought it i learned that ALL mics have a 1" measuring throw the jaws just get bigger. so now i have a relativley useless item in my toolbox

 

[foxwar71]

Re: THe NAC Lots-O-Post Thread

good morning from CO

 

[JrTxJ]

Re: THe NAC Lots-O-Post Thread

Ross you better be uploading some pics from the ice races later!